Electronic device

Abstract

According to one embodiment, an electronic device includes a housing including an opening, a partition wall which partitions an interior part of the housing into a first chamber and a second chamber which is opened to the outside through the opening, first and second heat generating parts mounted in the first chamber, a first heat radiation member located in the second chamber, a heat transfer member which transfers heat generated by the first heat generating part, a cooling fan which draws outside air and exhausts the air against the first heat radiation member, a second heat radiation member which is exposed to the outside of the housing and is thermally connected to the second heat generating part, and a cover covering the opening and the second heat radiation member. The cover forms a gap between the cover and the housing. The gap communicates with the second chamber.

1. An electronic device comprising:
 a housing; 
 a heat generating component in the housing; 
 a heat radiation member exposed to the outside of the housing and thermally connected to the heat generating component; and 
 an outer member facing the heat radiation member and providing a gap between the outer member and the housing, the gap allowing air to flow therethrough, the outer member comprising a hole through which the gap communicates with the outside of the electronic device. 
 
   
   
     2. The electronic device of  claim 1 , further comprising:
 a cooling fan configured to cause air to flow into the gap. 
 
   
   
     3. The electronic device of  claim 2 , further comprising:
 another heat generating component in the housing; and 
 another heat radiation member in the housing thermally connected to said another heat generating component, wherein 
 the cooling fan faces said another heat radiation member. 
 
   
   
     4. The electronic device of  claim 2 , wherein
 the hole is located outside a region facing the cooling fan of the outer member. 
 
   
   
     5. An electronic device comprising:
 a housing comprises an opening part; 
 a heat generating component in the housing; 
 a heat radiation member exposed to the outside of the housing and thermally connected to the heat generating component, the heat radiation member being detachably attached to the housing to cover the opening part; and 
 an outer member facing the heat radiation member and providing a gap between the outer member and the housing, the gap allowing air to follow therethrough, the outer member being detachably attached to the housing. 
 
   
   
     6. The electronic device of  claim 5 , further comprising:
 a sealing member which surrounds the opening part of the housing and is interposed between the housing and the heat radiation member. 
 
   
   
     7. The electronic device of  claim 6 , wherein
 a rib is provided at an edge of the opening part of the housing, the rib being raised toward the outside of the housing, and 
 the sealing member is compressed between the housing and the heat radiation member in order to wrap a top end of the rib. 
 
   
   
     8. The electronic device of  claim 6 , further comprising:
 a screw which fixes the heat radiation member to the housing, wherein 
 the heat radiation member comprises a through hole into which the screw is inserted, the through hole being in a region closer to an edge of the radiation member than a region contacting the sealing member, and 
 the housing comprises a wall, and a screw hole reaching the mid-point of the wall and receiving the screw. 
 
   
   
     9. The electronic device of  claim 1 , wherein
 the outer member is mounted on a lower surface of the housing, and 
 the housing is provided with a leg which protrudes toward the outside of the electronic apparatus compared with the outer member. 
 
   
   
     10. The electronic device of  claim 1 , further comprising:
 a holding member interposed between the housing and the outer member, the holding member holding the gap between the housing and the outer member. 
 
   
   
     11. An electronic device comprising:
 a housing; 
 a first heat generating component contained in the housing; 
 a second heat generating component contained in the housing; 
 a first heat radiation member in the housing thermally connected to the first heat generating component; 
 a second heat radiation member exposed to the outside of the housing and thermally connected to the second heat generating component; 
 a cooling fan further inward within the housing than the first radiation member and facing the first heat radiation member; and 
 an outer member facing the second heat radiation member and providing a gap between the outer member and the housing, wherein the cooling fan is configured to be driven to cause air to flow through the gap. 
 
   
   
     12. The electronic device of  claim 11 , wherein
 the outer member comprises hole through which the gap communicates with the outside of the electronic device. 
 
   
   
     13. The electronic device of  claim 12 , wherein
 the hole is located outside a region opposed to the cooling fan of the outer member. 
 
   
   
     14. The electronic device of  claim 11 , wherein
 the outer member is detachably attached to the housing; 
 the housing comprises an opening part; and 
 the second heat radiation member is detachably attached to the housing to cover the opening part. 
 
   
   
     15. The electronic device of  claim 14 , further comprising:
 a sealing member which surrounds the opening part of the housing and is interposed between the housing and the second heat radiation member. 
 
   
   
     16. The electronic device of  claim 11 , wherein
 the housing comprises an opening part which exposes the cooling fan to the gap. 
 
   
   
     17. The electronic device of  claim 11 , wherein
 the housing comprises a hole, and the first heat radiation member is located between the hole of the housing and the cooling fan.